RU-58841 Research Reference at Chemyo
This is the Chemyo research reference for RU-58841: what the compound is, its molecular identity, the formats in stock and the published batch testing. RU-58841 is supplied for research use only; nothing on this page is dosing, administration or clinical guidance.
What is RU-58841?
RU-58841 is a non-steroidal antiandrogen synthesised by Roussel Uclaf in the late 1980s and early 1990s. Unlike oral antiandrogens, it was designed for topical research, with the aim of blocking androgen receptors locally in the skin while limiting systemic exposure.
Published work studied RU-58841 in models of androgenetic alopecia and acne, including the stump-tailed macaque baldness model and human scalp grafted onto mice. The compound was later licensed for development but never reached approval, and there are no completed large human trials. It is therefore supplied as a research chemical in solution and powder form.
Molecular identity
| CAS number | 154992-24-2 |
| Molecular formula | C17H18F3N3O3 |
| Molar mass | 369.34 g/mol |
| Synonyms | RU58841, PSK-3841, HMR-3841 |
| Research class | Non-steroidal antiandrogen research compound |
Where to buy RU-58841 for research
Searches for RU58841 buy turn up many listings with no batch data. At Chemyo every lot of RU-58841 below has its identity, purity and, for solutions, concentration results published, so you can check the material before you order it.
- RU58841 | RU-58841 Solution 50mg/ml – 50ml
Liquid solution · batch FTIR and HPLC report plus concentration assay
- RU58841 Powder – 5g
Research powder · batch FTIR and HPLC report
Browse all SARM solutions, research powders and value packs.
Quality control
Every batch is independently tested: FTIR for identity, HPLC for purity and, for solutions, a separate concentration assay. Reports are listed by batch number in the Chemyo lab reports library, and our quality control process explains each step. To check a certificate yourself, see how to read a SARM COA.
RU-58841 FAQ
What type of compound is RU-58841?
A non-steroidal androgen receptor antagonist (antiandrogen) developed for topical research applications.
What has RU-58841 been researched for?
Animal and skin-graft models of androgen-related hair loss and acne, mostly in the 1990s.
Is RU-58841 approved?
No. It never completed clinical development and has no approved use.
Which RU-58841 formats are available?
A 50 mg/ml solution in 50 ml and a 5 g powder, each with a published batch report.
Related research references
Compliance: all Chemyo products are supplied for laboratory research only and are not for human or veterinary use. Read the terms and conditions before ordering.